Shires Sweet Iron Bevel NB the 5" would come with 55mm ring and 51/2" with 70mm ring £21.00 imperial size: [Choose]5.1/2"5" Quantity: at £21.00 each Add To Basket Sweet Iron Bevel with a copper lozenge. Ideal for horses that need a little bit more than a normal snaffle bit. 5" would come with the small 55mm ring. 5.5 would come with the normal 70mm ring. 16mm mouthpiece.